Y3144 Hall Effect Switch
  • Y3144 Hall Effect Switch

#4171: Y3144 Hall Effect Switch


A hall-effect sensor as then name suggests works with the principle of hall-effect and is used to detect magnets. Each side of the sensor can detect one particular pole. It can also be easily interfaced with a microcontroller since it works on transistor logic.

So if you are looking for a sensor to detect magnet for measuring speed of a moving object or just to detect objects then this sensor might be the perfect choice for your project.


How to use Hall-effect sensor:

There are two main types of hall-effect sensor, one which gives an analog output and the other which gives a digital output. A3144 is a digital output hall sensor, meaning if it detects a magnet the output will go low else the output will remain high. It is also mandatory to use a pull-up resistor as shown below to keep the output high when no magnet is detected.

Product Details

Hall-effect sensor Specifications:

  • Digital Output Hall-effect sensor
  • Operating voltage: 4.5V to 28V (typically 5V)
  • Output Current: 25mA
  • Can be used to detect both the poles of a magnet
  • Output voltage is equal to operating voltage
  • Operating temperature: -40°C to 85°C
  • Turn on and Turn off time is 2uS each
  • Inbuilt reverse polarity protection
  • Suitable for Automotive and Industrial Applications

Pin Configuration:


Pin Name



+5V (Vcc)

Used to power the hall sensor, typically +5V is used



Connect to the ground of the circuit



This pin goes high, if magnet detected. Output voltage is equal to Operating voltage.

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Y3144 Hall Effect Switch

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